Draft-rigging.



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mun .klamm APPLICATION FIL'EWJULY 2. lll-Y Patented Spf; 24,1918.,

11A-nar c. BUHoUP, or ommen,

COMPANY, or PI'r'rsrU-nolr, QENNBYL'VANIA, A CORPORATION oF rENNsYLvANIA.

education of Letters ratent.

MFT-mesme.

Patented Sept. 24, 1918.

Apllliln Med July 2, 1917. Serial N0. 178,074.

To all whom it may concern.'

Be it known that I, HARRY C. BUHOUP, a citizen of the United States, residing at Chicago, in 'the county 0f @ook and State s of Illinois., have invented certain new and useful Improvements in Drafteligging; and I do hereby declare the following to be a llll, Clt/1113 Mld exact deeription of the 1n volition, Such es will enable others skilled in "the art to which it appertains to make and use thesame.

My invention relates to the construction of: draft rigging for railway Gers and is more particularly directed to certain structural features whereby the coupler and yoke are 4pivotally eomiected inf a strong anc reliable manner. The usual mode of pivotally 'oonncetingi the coupler to thedraft yoke 1s to employ .a pivot piu which passes through suitable-holes formed in the reare d .of the ifokiuplerandin the forwardend of t ie yoke. This pini issubject to very severe sh aring strains .ini servie-ci and wl1en\\broken i1 the pul'liugof trains allows tlie 4e rs .tese-parat thereby causing delays and 'considerable `n `.-fdainagc to equipment.

thcinse4 of a. se 'iarate pivot pin is dispensed yWithLand the pivotal eonneetionbetween the yoke and the coupler is formed `in a. simple so and `efficient manner affording strength, se-

curity and durability to the construction.

.(iencrally stated, the principal feature of the invention involves the combination with a coupler having pivot lugs or bosses at its rear end,.of a draft yoke Jformed with a` i? .rlidodcdf forward end and having a plurality` off curved bearings adapted to coiiperate with.thezorresponding pivot lugs, at least one of the curved. beariig members being detachable from the yoke so 'as to be forwardly llremo'vablc, and means` being.,r providedfor inaii-rtalining said removable bearing member ouai'ieinbcrs iin assembled relation.

'.Elierearc other features of invention relatingfzfto special mattei-sof form and eleraient-al.:combinations `of `the parts, as will hereinafter appear and be .pointed out in the claims; f v;-

In the drawings which illustrate the best inodeinwvhich I contemplate applying the i principle of my invcntiom i Figure-Lis a vievvg partly in elevatlonand 4 partly in vertical central Section5` showing ri-"construction embodying-my invention? the By my constructi i forward portion of the car`eoupler and the rear portion of the draft yoke being omitted.

Fig. 2 is ahorizontal central section 0f the construction illustratedl in Fig. 1, the car coupler being shown in plan.

l4 ig. '3 is a front elevation of the construction shown in Figs. l and 2, the coupler be* ing in transverse section.. j Fig. 4 is a detail view showing in longi tudinal vertical section the forward portion or hoodedend of the draft yoke illustrated in the preceding views.

Fig. 5 is a detail plan view of one of the curved bearing members.

Fig. (i is a plan view of a modified form of the invention, the forward part of the cou pler and the rear end of the yoke being 0mitted.

Fig. 7- is a vertical longitudinal ortion of the construction shown in Fig. 6, tlie coupler being in elevation. f

Fig. 8 is a front eleva-tion of the const-rue tion illustrated in Figs. G and 7, the car couplcrrbeing shown in transverse section. i

Fig. 9 is a section on the line'9-9, Fig. 7'.

Fig. 1Q is a. detail planview of the curved )earin i me'mber that is employed in the modifie construction.

XLLINOIS, ASSIQNOIt T0 THE MCCONWAY TORLEY and 12 are res iectively. a )lan view and aside elevation o a. modified crm of ca r coupler well suited for carrying out the invention.` .'1*`1gs. 13 and 14 arerespeetively a plan view and a side elevation of the rear portion.

ofstill another forni of car coupler suitable 'for practising my invention.

In the form of construction illustrated in Figs. 1 to 5, inclusive, 1` indicates the cou-l pler and .is the draft vok'e of a draft rigging. The coupler is providedy with a headl (not shownl for .interlocking with a mahng coupler and the yoke is provided wit? parallel arms 3. 3 that are con ected at tl cir/'rear ends inthe usual way. draft yoke is adapted to coperate with the ordinary springs and followers (not shown) or other well-knowncushioning unit. The coupler 1 y is vpreferably provided a. short distancein advance of its rearend with oppositely exetendingcylindrical pivot lugs orcircular .bosses 4, the rear end of the co'ule'r bein also eurved,.as et,y concentric wit the sai pvot lugs.

The forward of the draft yoke 2 is hooded or socketed, being formed 'with sideI walls 6 integrally uniting the top and bottom walls'?. The yoke is also preferably provided with a transversely extending wall 8 which is adapted toengage the forward' follower .not shown) of the usual arrange ment of springs and followers within the yoke. A wall such as 8 not only braces and ties together the walls 6 and 7 ,of the draft yoke, thus increasing the strength of the structure, but also receives the buiiing shock from the car coupler 1 and communicates it to the forward follower, for which it affords a bearin of extended area. The inner faces 9 of the ateral walls 6, 6 of the yoke diverge outwardly so that the coupler receiving socket of the yoke is of a flaring form peruiitting the coupler to swing laterally when. the train is passing around a curve.

The' interior faces of the top and bottom walls 7 of the yoke, instead of being flat throughout, are preferably fashioned with longitudinally extending channels 10 which are of substantially the same dimensions, both in respect of depth and width, as the pivot lugs 4, and which receive the said pivot lugs. These channels 1() in conjunction with the flaring of the side walls 6 give to the coupler receiving socket of the draft yoke 2 a cruciform oross-section which is very strong and rigid. g l

Cooperating with the curved lforward faces of the pivot lugs 4 are bearing members 11 having correspondingly curved bearing faces'. These members 11 fit in the longitudinally extending channels 10 of the draft yoke, being thereby maintained against lateral movement. Their forward faces respectively engage transversely eX- tending bars or keys 12 which are removably mounted on the draft yoke so as to stand in horizontal alinement with the bearing members 11 in the path of removal. of theivot lugs 4 of the coupler. The draft yo e is provided with suitable holes 13 o r openings for the reception of the locking bars 12, which 'latter may bel conveniently retainedI in assembled position by [means of eotters 14.

'In assembling the construction hereinbefore described, the couplerl isl first insertedv in the socketed end of' the draft yoke 2, the bearing members '1I-'are then placedv in position and finallyf'the bars or keys 12 are in serte'dfirithe apertures 13 of the head and" secured in'place by means of the cotters 14. In the modification oh invention illus trated in Figs. 6, 7, 8, 9 an 10 of the draw# ngs, the coupler 1 is provided with pivot lugs 4 audits inner end 5 is curved concentrically with thepivot lugs,'identically the same as in the construction heretofore described. The draft yoke 2, though of hooded or; socketed form, diers somewhat in 'details of 'construction from' the l'draft yoke 2. Instead of being provided with curved bearing pushed rearwardly to ass members 11 both ofwhich' are the yoke 2 preferably removable, I has but a single re# movable bearing member 11, the curved Since only one removable fore described, the socketed end/pf ythe draft yoke 2? is, as shown, flared laterally to permit the coupler to execute the desired swmgmg movements. The vertical height of the socket into which the coupler 1 fits is suli.

eienl'ly great to allow the coupler to be lowered until its upper pivot lug 4 clears the shoulder or bearing member 11b of the draft yoke when the key 12'Il has been removed and thc supporting bearing 11a. has been withdrawn forwardly through the mouth of the coupler receiving socket of the' draft yoke. As well shown in Fig. 7 of the drawings the pivot bearing member lll'extends under the stem of the coupler and under the lower pivot lug 4 thereof, thus supporting the coupler in elevated position.- It is also preferred to extend the bearingmember 11". forwardly beneath the bar 12 bear against the sides of the, yoke at its forward end and thus Ibe sustained against latso that it may eral swinging or shifting with respect to the yoke.

In assembling this modified construction y the coutpler 1 is inserted in the Haring socket at the orward end of the draft yoke 2 sind its upper-pivot boss 41s brought into engage ment with the corresponding curved bearing' 11". The bearing memb .r 11 is then .entered in the mouth of th yoke socket and bled position, after wlnch the transversely extending locking bar or key 12a is put in place.

Figs. 11 and 12 illustrate' a -modifieduzonstruction of coupler which` may be advantageously employed. fIn, the form of coupler shown in these figures the stem of the coupler has a fillerr block. 15 that is interposed between and riveted or bolted to upper and lower plates 16. y Pivot lugs-4l are cast integral with the filler at its rear end.

ios

Still another manner of fashionin the car I coupler isillustrated in Figs. 13 an 14. In the construction there illustrated the pivot lu s 4' are formed integral with plates 17` w ich are riveted to an interposed filler member 18. f

The advantage .in em loying a coupler of either of the describe modlfiedforms is that, being a bui1tup or compositestructure vied om requires to be' eomp'leteiy I 'ly rbe repairedby ref which o is. injured or rait \-1'1gg1ng, the combination plelhavinglivt lugs, ofa draft y Vith n: y yliearing'members c erating l with lugey'at leaet one said' bear-in being `for\1 vardlyriemoveble'l an `lfnolfizontalz` alinement with one of" Hipvivotlfn 'formaintainingthe adjacentl bearing Mr inassembled position. i 2.' 'In draft lA withacouplerrproyi ediwith oppoeitel dissed pivotlugs, of ayoke having asoc eted n i o rward end, meansfor pivotally connecting n `said couplerand yoke,A said means engaging andtransversely removabler in the tllof removal of oldi'ngnldret named means ent witheaid lugs, i aft] rigging,y the combination n ler .providedwitb opositely llmxvotlnv ',"of a draft: o e

oke, said means incl ing a "plurality of aten-ally extending. bare carried Asaid ken` ted v`fioifwardl'y of Sai la. draft riggingy theeombinetion ith 'n. eoupler, of a* (1l-ait yoke,` means form'v ,jlpiyrzally connecting `said eonplerand 1 oke,

meanse'ompnsmg a; plurality of aringlmembereeaeh off which*l `is ada ted to engagea pivot. 'lug on the said coup er, and

y "a plurality. of bars each interposedgbetween adjacent bearing memberand a portion C of'aaid yoke f n f integral imit.,y the eonjilery 0 lateral y flared socket,vthe inner en ."coliler being`- adapted to inee'rtedinto engaging the forward f `faces of said pivot ugs, and' ineansfor hold ing said bearings inengagement with said; n ooded forward leildfk n sai the combination f said coupler with a coupler providedvvith pivotln i f ndacent `the inner end tlierbof,r of "e dra te rovided. with a forvvaidly open of'the socket, -beaiin' lugs, whereby saideoupler and yoke rare pivotallyeonnected. I

1 6.111 a "draft riggingytlieL combinat `with a coupler having pix'mtv lugs. at

inner end, of n drat'y e having-aI for wardly open laterally vflaring socket, 'nnaanasfE ifor plvotally connectinv i said yokeaid'lneans inc dinga plurality ofj bearm i members, insertiblelnto said Sioelwt` 'after t e insertionof 'said' coupler `and eac adapted .to engagethe forward` face offen of said pivotlugs. l

with-'a cou lerxhavingaluralit vof pivot i s i, y

lugs, `of a raft al plurality of curvedbeuringineinberS, re` x movable means for preventing` forward' movement of the bearing niembers`- relativey to said yoke,` andl meansyfo' preventin rearwarci `movement of couplervl w1 8; In a dra t riggin ithy a coupler? havmg pi oke,fnnd ctn-vedbearing xn l coperating `with the saiil P n v coupler said bearing memberebeing- 1in 80 f terpose between said plvotlugs and theforv. ward end kof said yoke and"being"removabley independently of said yoke. l n In testimony whereof I iiix my signature.v1 n

` HARRY CQBUHO'UP. 'f

Said pivot lugelto 

